kids encyclopedia robot

County Dublin facts for kids

Kids Encyclopedia Facts
Quick facts for kids
County Dublin

Contae Bhaile Átha Cliath
Coat of arms of County Dublin
Coat of arms
Beart do réir ár mbriathar  (Irish)
"Action to match our speech"
Location of County Dublin
Country Ireland
Dáil Éireann Dublin Bay North
Dublin Bay South
Dublin Central
Dublin Fingal
Dublin Mid-West
Dublin North-West
Dublin Rathdown
Dublin South-Central
Dublin South-West
Dublin West
Dún Laoghaire
EU Parliament Dublin
Province Leinster
 • Total 922 km2 (356 sq mi)
Area rank 30th
 • Rank 1st
Vehicle index
mark code

County Dublin (Irish: Contae Bhaile Átha Cliath or Contae Átha Cliath) is a former county in Ireland. It is conterminous with the Dublin Region and is in the province of Leinster. It is named after the city of Dublin, which is the regional capital and the capital city of Ireland. County Dublin was one of the first parts of Ireland to be shired by John, King of England following the Norman invasion of Ireland.

Prior to 1994 County Dublin was also an administrative unit covering the whole county outside of Dublin City Council. In 1994 Dublin County Council was abolished and replaced with three separate administrative county councils: Dún Laoghaire–Rathdown, Fingal and South Dublin. The total population of the three aforementioned counties and Dublin city was 1,345,402 according to the census of 2016.

Since the abolition of the Dublin Regional Assembly by statutory instrument No. 573/2014, the Eurostat statistical region known as "Dublin Region" falls under the remit of the wider Eastern and Midland Regional Authority.


  • Road: The major roads are the N2, N3, N4 and N7 national primary roads, and the M1, M11 and M50 motorways.
  • Heavy rail: The InterCity and Commuter rail services (Iarnród Éireann).
  • Light rail: The Luas tram system serving Dublin City and its southern and western suburbs.
  • Rapid transit: The DART and the proposed Dublin Metro line.
  • Port: Dublin Port and Dún Laoghaire Harbour.
  • Air: Dublin International Airport.


See also: Transport in Dublin

County Dublin is the main transport node of Ireland, and contains one international airport, Dublin Airport. It is also served by two main seaports, Dún Laoghaire port and Dublin Port, which is just located outside of the city center. The two main train stations are Dublin Heuston and Dublin Connolly, both of which serve intercity trains.


According to the 2006 census, County Dublin had a population of 1,187,176, which constitutes 30% of the national population. This was an increase of 9.5% on 2002 figures. Its population density was 1,218/km². The population of Dublin City, was 506,211.

The median age of the population of the county in the 2006 census was 35.6 years, with 62% of people aged between 20–64 years old. Net migration to the county between 2002 and 2006 was 48,000, with a natural increase of 33,000 people.

There are 10,469 Irish speakers in County Dublin attending the 31 Gaelscoils (Irish language primary schools) and eight Gaelcholáiste (Irish language secondary schools). There may be up to another 10,000 Irish speakers from the Gaeltacht living and working in Dublin also.

Urban areas

A list of the largest urban areas (those with over 1,000 inhabitants) in County Dublin. Administrative county seats are shown in bold.

Rank Urban area County Population
(2011 census)
1 Dublin Dublin City,
Dún Laoghaire–Rathdown,
South Dublin
2 Tallaght South Dublin 71,504
3 Blanchardstown Fingal 68,156
4 Swords Fingal 42,738
5 Dún Laoghaire Dún Laoghaire-Rathdown 38,761
6 Balbriggan Fingal 19,960
7 Malahide Fingal 15,846
8 Skerries Fingal 9,671
9 Portmarnock Fingal 9,285
10 Rush Fingal 9,231
11 Donabate Fingal 8,730
12 Lusk Fingal 7,022

Towns and suburbs

Images for kids

kids search engine
County Dublin Facts for Kids. Kiddle Encyclopedia.